9. Rinse a clean tube (0290), or the
same tube, three times with the
standard. Avoid spilling standard on
the outside of the tube.
10. Fill the tube to the fill line with the
standard. Pour the standard down
the inside of the tube to avoid
creating bubbles. Cap the tube.
11. Wipe the tube thoroughly again with
a lint-free cloth.
12. Open the meter lid. Insert the tube
into the chamber. Align the index
notch on the positioning ring with
the index arrow on the meter. Close
the lid.
13. Press *IOK to select Scan Sample. Turbidity (F)
* Scan Sample
16:02:19 01/04/05
CALIBRATION & ANALYSIS • TURBIDITY 45